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keeping the puppy charged


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Hi Folks,

I've been driving the car every couple of weeks through the ice and salt as I've been concerned about the battery running down and not being able to start it at all. I can't take it anymore though. Seeing salt and crud on the wheels calipers and all over the wheel arches and that lovely aluminum collector box behind the back wheels makes me cringe. So I've washed it and its going to sit in the garage. Problem is, its a public garage not mine so I can't trickle charge it to preserve the battery. So the question is....will starting it up every couple of weeks and letting it idle charge the battery or does that only get charged when the car is in motion? I could drive it round and round the garage like a loon but that isn't very practical for obvious reasons :D Would live to get some advice on this. Thanks in advance Porsche People!

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Only technically spoken, the alternator will charge the battery at idle. Unfortunately this procedure is not good for the engine health, better is to take the car out for a 10 miles drive once a week, if you can't use a battery tender.

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Hi Folks,

I've been driving the car every couple of weeks through the ice and salt as I've been concerned about the battery running down and not being able to start it at all. I can't take it anymore though. Seeing salt and crud on the wheels calipers and all over the wheel arches and that lovely aluminum collector box behind the back wheels makes me cringe. So I've washed it and its going to sit in the garage. Problem is, its a public garage not mine so I can't trickle charge it to preserve the battery. So the question is....will starting it up every couple of weeks and letting it idle charge the battery or does that only get charged when the car is in motion? I could drive it round and round the garage like a loon but that isn't very practical for obvious reasons :D Would live to get some advice on this. Thanks in advance Porsche People!

Are their lights in the garage? If so have you thought about putting one of those solar charging panels on the dash and charging it through the lighter socket?

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Only technically spoken, the alternator will charge the battery at idle. Unfortunately this procedure is not good for the engine health, better is to take the car out for a 10 miles drive once a week, if you can't use a battery tender.

I agree with RFM.

My old M-B needed a jump a few times (the original radio was somehow causing the new battery to completely lose its charge overnight), and the AAA guys used a portable battery booster about the size of an old portable typewriter (remember those?) Might this work for you? Here's a link:

http://www.sears.com/shc/s/p_10153_12605_0...rs+%26+Boosters

Edited by 355bhp
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You could remove that battery and put it somewhere you can safely store it with a trickle charger attached.Only issue would be opening the front lid once it it has been closed without the battery hooked up, which due to the fact that is actuated electrically , won't work. The lid can be opened mechanically.Check your manual for details concerning opening the hood in this fashion. I would test the procedure prior to battery removal so that you're comfortable with the process and worry free knowing you can open it without the battery in the car before you remove it. No other solution I know of short of driving it regularly.

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Taking the battery out is likely your best option. You will be able to pop the hood to return the battery by using the "jump" pull our fuse in the driver side footwell. With a junp vehicle you can open the hood and replace the battery. Make sure you have your radio code handy as you will need it.

Good Luck!

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What about using one of those portable jump-start devices, hooked up to the cigar lighter as a surrogate battery? It should have enough juice to keep the car charged for two or so weeks, then while the car's battery is still fully charged, take the jump starter in and recharge it overnight, then put it into the car again the next morning? I've seen some of those jump starters on special here in NZ for as little as NZ$50 (about US$27).

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Taking the battery out is likely your best option. You will be able to pop the hood to return the battery by using the "jump" pull our fuse in the driver side footwell. With a junp vehicle you can open the hood and replace the battery. Make sure you have your radio code handy as you will need it.

Good Luck!

That's an interesting point but if the battery is disconnected is the circuit to the jump lug still active ? Buddy of mine has '99 that he removed the battery from for the winter and then closed the hood. When I suggested using the jump lug I starting thinking about it and then wasn't sure if it would work with both the positive and negative battery leads disconnected. Told him to use the wire located under the bumper that's there expressly for emergencies. Have you ever tried to open the hood this way with the battery out of the car ?

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Guys - thanks for all your responses. The idea of the jump starter sounds like a good one. Having said that, as long as the weather stays dry I'll be able to drive her regularly so hopefully it won't be too much of an issue. Taking the battery out also sounds like a solution albeit a more complex one! How does one obtain the radio code? Anyway loving the car. We are lucky people, people!

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  • 2 weeks later...

I'm in a bind as my remote garage has no power at all and I've been looking for a good solar powered maintainer for the car. So far, nothing. A few may work fine, but need to add longer cables to reach roof outside.

****, looks like I should remove the battery and keep the hood cracked with the Porsche cover over the darn thing.

One of these days I'll find a good solar charger to do the job.

Deanski

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